A Terrible DOUBLE Mistake!

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Published 2022-12-24
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Sometimes, the chain of events needed to cause and accident can be so strange that it seems almost comical. But these pilots, struggling to keep their Airbus A321 in the air, were not laughing. Stay tuned.

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Below you will find the links to videos and sources used in this episode. Enjoy checking them out!

Sources
-----------------------------------------------------

Final Report:
www.gov.uk/aaib-reports/aircraft-accident-report-a…

Aircraft Used:
Airbus A321 by Toliss:
store.x-plane.org/Airbus-A321-by-Toliss_p_1174.htm…

Kathon: SCL
shop.sclubricants.com/houghton-kathon-886-mw-bioci…

A321 Leap Engine: Gyrostat (Wikimedia, CC-BY-SA 4.0)
en.wikipedia.org/wiki/CFM_International_LEAP

A321 Leap 2: master films/H. Grousse
mediaassets.airbus.com/pm_38_519_519517-2xlhd4uc6i…

Borescope Video: RVI Ltd Remote Visual Inspections
   • CFM56-5 Combustion chamber Inspection  


CHAPTERS
-----------------------------------------------------
00:00 - Intro
00:21 - Bugs in the fuel
04:32 - Flight one
06:22 - Flight two
08:03 - Flight three
11:15 - Flight four
17:18 - Software confusion
19:06 - Flight five
23:53 - Mayday, mayday, mayday
25:32

All Comments (21)
  • "He did the next best thing; he went on the internet ..." Oh, this can't end well.
  • Hey Petter. I’m a travelling doc who works in a chaotic and unpredictable clinical environment. I am astounded by the differences in your industry and mine. There are so many lessons my industry could learn from you, your videos and the aviation industry in general. I so wish the business of clinical medicine was standardized as it is in your industry. Every ER I walk into has a different set up, different critical equipment, and staffing that is without standardized roles or anything that approaches CRM. With every hospital doing its own thing it is easy to understand why certain important pieces of equipment can’t be located immediately in a true emergency. When seconds matter, even in a well equipped hospital you can imagine how those holes in the Swiss cheese can line up with catastrophic consequences. It’s as if you as a pilot were to expected to fly in an unfamiliar cockpit every time you changed your base of operation and were also faced with non-routine challenges in that unfamiliar environment on a frequent basis. There are so many of my days that feel a bit for me like what your pilots in this video must have felt like as they were improvising on the fly and trying to get to a safe endpoint. The fact that medical errors are hidden behind the shield of patient confidentiality is another critical weakness of my industry. I have learned so so much from watching your videos. You are doing an incredible public service! Thank you sir.
  • @robincharles7057
    12:44 I will never get tired of how he shows pilots agreeing about something by having the camera nod at the empty seat. 😂 Such a simple thing but always makes me giggle
  • @jeroen9991
    Airbus also changed the procedure in the Maintenance Manuals, they got rid of the PPM calculations and just show a table with the amount of biocide required for each tank in mililiters.
  • @TheNerd
    Pilot: Aaah, hey during our flight the entire plane started to vibrate and my screen told me that my engine was stalling Engineer: nah, bruh IT'S FINE. 😀
  • The most shocking news here is that after several unsuccessful engine start-ups, ecam engine stall messages on different legs of the flight, one engineer doing an outside visual check is ever regarded to be enough to send the plane back to flight. I think the crew did an amazing job but there was a lot of luck involved. If both engines had stalled at 500ft right after t/o the flight might be doomed regardless how skilled the crew is.
  • My favorite part of Mentour Pilot's coverage is when he outlines the steps taken by the aviation industry to respond to each incident. It gives me the good feels that every incident is a learning experience to prevent future ones.
  • @Matticitt
    The best part of that story is how professional all the flight crews were. It's just so satisfying to hear.
  • @george-op9dw
    The maintenance worker not only killed the fungus completely, but almost killed the plane itself!! 😂😂 Seriously now, amazing story, with amazing analysis. Congratulations 👏👏
  • @321southtube
    I usually don't comment but...hey...It's Christmas Eve!!!! I really enjoy ALL of your videos. While not a pilot, I am an aviation buff, intrigued by all things mechanical and am really interested in the psychological aspect of how people deal with....or can't deal with stress. You cover it all! Crew management, complacency, confirmation bias, troubleshooting, laziness, and heroics. I am now a retired firefighter paramedic of 30 years but while on the job attended a class years ago that dealt with leadership in stressful situations. It was modeled after pitfalls and lessons learned in the cockpit and how the aviation community identifies and remedies issues. I took that all with me, and it kept my crew and I safe and focused. The sterile cockpit, correctly balancing authority while enabling everyone to have a say...etc etc....all stuff that is relevant in so many aspects of life. Anyway....Thank you for always providing an intriguing, interesting, and educational program. Great narration, simulations, and content. Merry Christmas and Happy Holidays to you and your family.
  • I'm a private pilot and HUGE fan of your channel. After watching for more than a year, it suddenly occurred to me today that ALL professional pilots could vastly increase their situational awareness by simply watching your videos. I don't think it's an overstatement to say that these "stories" - not merely interesting and informative to a lay audience - are exceptional "awareness enhancers" for every imaginable (and a few unimaginable) crisis. Even if every pilots gets the required training mandated by aviation authorities following incident and accident reports, and no matter what the lawyers might say, it seems to me there is no pilot alive who could not benefit tremendously from watching these. I might even go so far as to say that lives might be saved.
  • @Noodlyk18
    I find this fascinating, for anyone else wondering, the organism called Candida keroseneae (yes that's the name!) was isolated in 2011 from fuel taken from an aircraft, it grows and sustains itself on kerosene, that's amazing. While I was researching this I found others that can sustain themselves on alcohol fumes, growing on the ceiling of distilleries. Nature is incredible.
  • @IDWpresents
    I think another important lesson from this incident is that it was saved by a single strong link in the chain. All the holes in the swiss cheese model lined up, but there was still one layer left at the end: The Pilot's training, and that was all that was needed to save the day. It's a good reminder that incidents can be stopped at any point in the process, be it early or late
  • Thankfully the aircraft landed safely....which is why a TV show/documentary wouldn't touch this story. Yet another reason why this channel is so awesome - the emphasis is on analysis and lessons learned, not the dramatization of tragedy.
  • @PoisonedAl
    Another thing that could have been done is ship that additive in one or two litre bottles. The engineer would have looked at the 30 liters result from the internet, looked at the bottle and would have gone "Nah! That's not right!"
  • @Bobario1
    I can't believe how many times this plane had engine trouble and still flew.
  • As a chemist using PPM to specify a volume % for liquids is confusing. When I see PPM, I usually think mole %, which does coincide with volume % in gases, but that is certainly not true for different liquids.
  • @JonosBtheMC
    This man taught me one of the most important life lessons: beware confirmation bias. Sometimes you can trust something you learn online. Don't change. Don't be tempted to dumb things down for a wider audience. We come to learn; we leave informed and entertained.
  • @jeffbolks5969
    I am astonished that an airline would let a maintenance person who does not speak English or understand English conduct maintenance by himself on an airplane that will be carrying hundreds of passengers and crew. To me it is very disturbing that this could even happen and just another reason why I quit flying commercial. That would be like having a brain surgeon operator on you without being able to understand the nurses and other doctors in the room. The only difference is a doctor has other people around to help him and only works on one person at a time. And even more disturbing is that you never mention that little bit of information after your initial comments on it if that plane had crashed would have you then gone after the airlines for such haphazard maintenance procedures